Package etomica.math.geometry

Class Parallelogram

java.lang.Object

etomica.math.geometry.Polytope

etomica.math.geometry.Polygon

etomica.math.geometry.Parallelogram

All Implemented Interfaces:

Parallelotope, Shape

public class Parallelogram
extends Polygon
implements Parallelotope

A quadrilateral with opposite sides parallel .

See Also:

Serialized Form

Field Summary

Fields inherited from class etomica.math.geometry.Polygon

edges

Fields inherited from class etomica.math.geometry.Polytope

D, embeddedSpace, hyperPlanes, position, vertices

Constructor Summary

Constructors

Constructor	Description
Parallelogram(Space embeddedSpace)	Default constructor makes a square of unit size
Parallelogram(Space embeddedSpace, Vector a, Vector b)	Constructs a parallelogram with the given edge vectors.

Method Summary

Modifier and Type	Method	Description
boolean	contains(Vector v)	Returns true if the given vector lies inside (or on the surface of) this cell, false otherwise.
double	getArea()
double	getPerimeter()	Returns the sum of the length of the edges of the polygon
void	setEdgeVectors(Vector[] edgeVectors)	Sets the lengths and directions of all edges of the parellelepiped.
void	updateVertices()	Calculated vertices based on current values of edge vectors.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from class etomica.math.geometry.Polygon

getEdges, getVolume

Methods inherited from class etomica.math.geometry.Polytope

applyTranslationRotation, D, getEmbeddedSpace, getPosition, getVertexCount, getVertices, setPosition, toString

Constructor Detail

Parallelogram

public Parallelogram(Space embeddedSpace)

Default constructor makes a square of unit size

Parallelogram

public Parallelogram(Space embeddedSpace,
                     Vector a,
                     Vector b)

Constructs a parallelogram with the given edge vectors.

Method Detail

getArea

public double getArea()

Specified by:

getArea in class Polygon

getPerimeter

public double getPerimeter()

Description copied from class: Polygon

Returns the sum of the length of the edges of the polygon

Overrides:

getPerimeter in class Polygon

updateVertices

public void updateVertices()

Calculated vertices based on current values of edge vectors.

Specified by:

updateVertices in class Polytope

contains

public boolean contains(Vector v)

Returns true if the given vector lies inside (or on the surface of) this cell, false otherwise.

Specified by:

contains in interface Shape

Specified by:

contains in class Polytope

setEdgeVectors

public void setEdgeVectors(Vector[] edgeVectors)

Sets the lengths and directions of all edges of the parellelepiped. Given instances are copied to an internal representation.

Specified by:

setEdgeVectors in interface Parallelotope